Baile do Castelo, Rio das Pedras, Rio de Janeiro . This ball of the western area of Rio de Janeiro is well known for its social diversity : from the "playboys" from Barra neighborhood to the slum's inhabitants... In this extended slum, drug trafficking doesn't exist because it is controlled by a paramilitary militia. In a city where social classes are divided and where whole territories are controlled by drug traffickers or militias, the Funk carioca movement, enables for the time of a "baile" to forget differences..